Radnor Memorial Library is the community's free public library.

It is part of the Delaware County Library System and is open to the public seven days a week. While there has been a library in Radnor Township since 1809, the Library has existed in its current incarnation since 1892. The Library is proud to continue its strong commitment to community service. The Library offers a wide range of services and a varied selection of materials. Residents have access to information and reference assistance, Internet for public use, (Wi-Fi) Wireless Internet connection with your own laptop, online subscription databases, online homework help for students of all ages, summer reading programs, homebound service, lectures, book discussion groups, and other special events, many of them sponsored by the Friends of the Library.